Finding the Fourth Proportional to 3,857.69, 5,323.51 and 2,179.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,857.69 : 5,323.51 = 2,179.10 : x
2. Step 2: Convert to fraction form
   3,857.69/5,323.51 = 2,179.10/x
3. Step 3: Cross multiply
   3,857.69x = 5,323.51 × 2,179.10
4. Step 4: Simplify right side
   3,857.69x = 11,600,423.13
5. Step 5: Solve for x
   x = 11,600,423.13/3,857.69
6. Step 6: Final answer
   x = 3,007.09